Peters



4 Sheets-Sheet 1. A. BANNATYNE.

(ModeL) REPEAIING CLOCK.

Patented Mar. 19, 1889.

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4 Sheets-Sheet 2.

ALBANNA-TYNE.

REPEATING CLOCK.

(ModeL) Q 114mm L 04 non/ 31w N. PETERS, PlwXo-Uthogwhcr. Wnshingwn. n.c.

4 Sheets-Sheet 3 (ModeL) A. BANNATYNE.

REPEATING CLOUK No. 399,647. Patented Mar. 19, 1889.

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( m 4 Sheets-Sheet 4.

A. BANNATYNE.

REPEATING 011001;. No. 399,647. Patented Mar. 19, 1889.

WHY/Ants :Ylonmatam-J UNITED STATES THE \VATERBURY CLOCK COMP kNY, OFSAME PLZ; "E.

REPEATENG=CLOCK.

SPECIFICATION forming part of Letters Patent No. 399,647, dated March19, 1889. Application filed December 21, 1887. Serial No. 258,591.(Model-l To aZZ whom it may concern.

Be it known that I, ARCHIBALD BANNA- TYNE, residing at lVaterbur-y, inthe county of New Haven and State of Connecticut, have invented certainnew and useful Improvements in Clocks; and I do declare the following tobe a full, clear, and exact description of the same, reference being hadto the accompanying drawings, which form a part of this specification.

My invention relates to an improvement in striking-clocks, the objectbeing to produce a clock of simple and reliable striking action andincluding repeating and chiming mechanisms novel of construction andeffect, and giving the clock additional value as a timepiece.

lVit-h these ends in view my invention consists in certain details ofconstruction and combinations of parts, as will be hereinafterdescribed,and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view, in front elevation, ofa clock embodying my invention,the clock-case being represented insection to show the push-rod of the repeating mechanism and the bellsand bellhammers. Fig. 2 is a broken view of the clock, in verticallongitudinal section, showing the rear frame-plate of the movement, thechimingcam, the chiming-lever, the hammer-wheel, the bell-hammers, andthe bells. Fig. 3 is a broken view, in vertical transverse section,showing the front and rear frame-plates, the center arbor, and theseveral parts attached to such arbor. Fig. t is a detached view, infront elevation, of the hour-wheel, the hour star-wheel, the snail, andthe pin employed for coupling such parts together. Fig. 5 is a brokenview, partly in section and partly in elevation, taken on the line a bof Fig. 3,100]:- ing in the direction of the arrows c c on that figure,and showing the center arbor, the striking-cam, the operating-lever, andthe beveled finger of the spring-arm of such. lever in engagement withthe said cam. Fig. 6 is a detached view, in elevation, of theoperatinglever with its spring-arm attached. Fig. 7 is a detached view,in end elevation, of the triotion-pinion, showing its extended and splitsleeve. Fig. 8 is a reverse view, in elevation, of the spring whichcompletes the hourly l l l movement of the hour star-wheel and snail.Fig. 9 is a detached view, in inside elevation, of the chiming-lever,the hammer-wire connected therewith, and the bell-hammer carried by suchhammer-wire. Fig. 10 is a detached view, in side elevation, showing thesilent hook in its relation to the rack, the silent stop in its relationto the striketrain, the staff by which such hook and stop are carried,and the button and the indicating-linger attached to the rear end of thestall for operating the same. Fig. 11 is a detached edge view of thesnail and hour star-wheel, showing the beveled linger of the flexiblerack-arm engaged with the lower step of the snail. Fig. 12 is a detachedperspective view of the locking-arm, and Fig.13 is a detached viewshowing how the spring-ar1n of the operating-lever is retired when thestriking-cam is rotated in turning back the hands of the clock.

My improved clock has a front frame-plate, A, and a rear frai'ne-plate,B. its time mechanism and its striking mechanism are operated by asingle spring inclosed in a box, 0, indicated by broken lines in Fig. 1of the drawings.

The general construction and arrangement of the time-train and thestrike-train being old, these features have not been particularlyillustrated, nor will they be particularly described. l

A push-rod, D, mounted in the top of the clock-case E, provided at itsupper end with a push-button, F, restored to and normally sustained inits elevated position by a spring, G, encircling it and inclosed in theclock-case, is provided for liberating the repeating mechanism andincidentally the chiming mechanism. The lower end of this red engageswith a step, ll, formed at the upper end of a repeating-lever, I,pivoted to the front frameplate, A, and engaging at its lower end withthe bent upper end of the lifting-arm J, which is made integral with theoperating-lever K, 5 the outer end of which is provided with a finger,L, and stop-arm M, as shown. A springarm, X, secured to the saidoperating-lever, is provided at its free end with a beveled finger, O,which projects through a slot, P, in IOO such arm and through anopening, Q, in the frame-plate A into position. for engagement by thetwo fingers of the striking-cam R, which is rigidly secured to thecenter arbor, S, of the clock. Normally the cam rotates in the directionof the arrow 01 and engages with the finger O, lifting the saidoperating-lever, so as to release the strike-train. In turning the handsof the clock back, however, the fingers of the said cam are engaged withthe beveled face of the said finger O and force the same out of the way,the spring-arm yielding thereto, whereby the hands may be turned backwithout injury to the clock. The rack T is of ordinaryconstruction, andhas rigidly secured to it a flexible rack-tail, U, provided at its outerend with a fingerbeveled on an outward incline, engaging with the edgesof the snail V, which is located upon the center arbor, S, together withthe hour star-wheel WV, which is rigidly connected with the snail. Bymaking the said rack-tail flexible and beveling its finger it is adaptedto be pushed one side by the snail when the same is being advanced withthe finger engaged with its great step X. By locating the snail and thehour star-wheel upon the center arbor economy of space is secured andalso economy of material and labor, as fewer parts are required. Thisconstruction also enables a better rack arrangement to be had andsecures a more direct and hence better action thereof. The snail andhour star-wheel, which are rigidly secured together, as aforesaid, areprevented from being moved out of their proper relation with thehour-wheel Y by coupling the said hour star-wheel with the hour-wheel,which moves both the snail and the hour star-wheel every hour by meansof a pin, Z, located in the hour-wheel and projecting between the teethof the hour star-wheel, betweenwhich it has suffieient range of movementto permit the hour-wheel to move forward during the hour independent ofthe hour star-wheel, except during a portion of the latter part of thehour, when the said pin engages with that tooth of the hour star-wheelwhich is immediately ahead of it, and so carries such wheel and thesnail forward. By coupling the hour starwheel and the snail with thehour-wheel, as described, the time-train and the strike-train arevirtually coupled, whereby'any movement of the pointers of the clockwill not throw the two trains out of harmony of action. Under myconstruction, therefore, the proper relations between the time andstrike mechanisms are always maintained and the clock always strikesright or in correspondence with the hour. The hour star-wheel and thesnail being positively actuated once an hour by the hour-wheel, asdescribed, their hourly movement is completed by a spring, A, secured tothe front plate of the clock and bent at its upper end to form a nose,l3, entering between the teeth of the hour star-wheel, which, under theaction of the hour-wheel, pushes it aside. Then as soon as that tooth ofthe hour star-wheel which is in engagement with the said nose passes thepoint C of the same the spring flies back, and through the action of thebeveled lower face of the nose on the tooth referred to rotates the hourstar-wheel and the snail and leaves the pin, and hence the hour-wheel,free. A lip, D, formed upon the outer edge of the spring, is providedfor holding the hour star-wheel and the snail in place upon the socketof the hour-wheel. This it does by lapping over onto the outer face ofthe hour star-wheel, whereby the sameis prevented from moving forward onthe center arbor.

The finger L of the operating-lever K engages with the beveled nose E ofthe pivotal spring-actuated locking-arm F, which is provided with theusual locking-pin, G, for engagement with the rack T. The saidlockingarm is bent inward at its upper end to form a stop, H, whichprojects through an opening, 1, formed in the frame-plate A, in positionfor engagement with a stop-pin, J, carried by the fourth strike-wheel,K, as shown. The said pin J is also engaged by the stoparm 11, locatedat the forward end of the opcrating-lever K, so that when the said leveris operated to lift the locking-arm F and disengage the stop H thereoffrom the stoppin J its stop-arm M is also lifted into range with thesaid pin, which engages with it, and thereby holds the strike-trainuntil the operatinglever is permitted to drop back by the removal ofpressure from the push-button F. The gathering-pin L is carried by agathering-hub, M, secured to the forward end of the arbor N of the thirdstrike-wheel, O,which is indicated by broken lines in'Fig. 1 of thedrawings. This pin and hub are of ordinary construction.

A ham mer-wheel, P, mounted on the arbor Q of the second strike-wheel,R, also indicated by broken lines in Fig. 1 of the drawings, has itsslanting teeth engaged by the bent upper end of the hammer-tail S, thesame being secured to the arbor T, carrying the hammer-wire U, uponwhich the hammer V is mounted. The said hammer is arranged for impactupon the bell TV, secured to and within the base of the clock-frame. Thehammer thus described is the ordinary striking-hammer of a clock.\Vithin the said bell \V is located the chiming-bell X, of differenttone from the bell TV, and struck by a bell-hammer, Y, carried by ahammer-wire, Z, attached to a hub, A pivoted to the frameplate B, andhaving secured to it a twoarmed chiming-lever, B the arm 0 whereof ispro vided with a finger, D for engagement by the teeth of thehammenwheel P, and with a guard, E extending between such wheel and thesaid frame-plate B, and preventing the said finger from being displacedwith respect to the teeth of the said wheel. The arm F of the saidchiming-lever B is arranged for engagement by a chiming-cam, G rigidlysecured to the center arbor, S, of the clock at a point just within theframeplate B, rotating in the direction of the arrow 8, (shown in Fig. 2of the drawings,) and located upon the said arbor so as to release thearm F just before the expiration of the halfhour and re-engage it againjust before the beginning of the hour. A spring, H connected with thewire Z aforesaid, exerts a constant tendency to throw the arms of thechiming-lever toward the hammer-wheel and the chiming-cam. Directly infront of the said chiming-cam is located the first time-wheel, P, whichis secured to a friction-pinion, J mounted upon the center arbor, S, andprovided with an extended sleeve, K split to grip the arbor and couplingthe pinion therewith under a friction sufficient to carry thetime-train, but permitting the arbor to be turned freely within itthrough the knurled button L at the rear end thereof.

A silent hook or detent, M and a silent stop or detent, N are, as hereinshown, made from a single piece of metal and mounted upon the projectingforward end of a staff, 0' the same being mounted in the frame-plates Aand B, and projecting also through the latter and provided upon itsprojecting rear end with an operating-button, P by which it is manuallyturned to bring into action or retire the said detent and stop, and withan indicatingfinger, Q, to show how the staff. is to be turned to securethe results specified. The said silent hook is arranged to engage withthe rack T, and prevents the same from dropping when released by theaction of the striking-cam B. On the other hand, the silent stop isarranged to be engaged by the stop-pin J of the fourth strike-wheel, K,whereby the strike-train is stopped soon after it is released by thedisengagement of the stop II from such pin through the action of thestrikingcam R.

Under my improved construction the clock strikes the hours upon the bell\Y and repeats thereupon during the first half of the next succeedinghour by manual pressure upon the push-button I the chiming-cam Grmeanwhile holding the arm C and finger D of the chiming-lever B out ofrange of the hammer-wheel P. Just before the half-hour is reached,however, the chiming-cam releases the chiming-lever, leaving it free. tobe actu ated by the haimner-wheel. Then when the first half of the houris completed and the strike-train is released by the striking-cam thehalfhour will be chimed by a single stroke of the bell-hammer V upon thebell IV, followed by a single stroke of the hammer Y upon the bell X.The chiming lever B is now left free for actuation by the hammerwheeluntil just before the last half of the hour is completed, so that duringthis last half-hour or until it is just about to close the clock willrepeat the hour by chiming it upon both bells. Then just before the endof the hour the chimingcam re-engages with the arm F of thechiming-lever B and lifts the finger D of the arm C thereof out of rangeof the hammer-wheel P, whereby the hour is struck by the hammer Y alone.By changing the character of the repeating-tone on the half-hour thefirst and the last half of the hour are indicated and made readilydistinguishable each from the other.

It will be noted, also, that under my invention both the time and strikemechanisms are operated from and by a single spring, whereby economy ofspace and gearing is secured, with the additional advantage of windingboth sides of the clock by a single arbor.

It will be noted, furthermore, that by employing a rack and snail inconjunction with a time-train and a striketrain operated by a singlespring, the two trains are at all times preserved in their properrelations and the striking is always correct, and this because the snailis uniformly operated by the hourwheel, whereas in clocks having atime-train and a strike-train operated by the same spring, and acount-wheel or a locking-plate, the time and strike sides are oftenthrown out of harmony by the stopping of the clock. \Yhen the time andstrike sides of the clock are so thrown out, harmony between them canonly be restored by removing and shifting the hands or by striking theclock round to conform the strike side to the time side. The objectionsabove referred to are overcome by employing, in combination with asingle spring, a rack and snail in place of a countwheel or alocking-plate.

I would have it understood that I do not limit myself to the exactconstruction shown and described, but hold myself at liberty to makesuch changes and alterations as fairly fall within the spirit and scopeof my invention.

llaying fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a repeating-clock, the combination, with a spring-actuatedpush-rod mounted in the top of the clock-case, of a repeating-leverpivoted to the front frame-plate and engaged by the said rod and alifting-arm engaged by the said repeating-lever and made in the samepiece with theoperating-lever of a rack, and snail repeating mechanism,substantially as set forth.

2. In a striking-clock, the combination, with an hour-wheel, of an hourstar-wheel and a snail rigidly secured together and coupled with thehourwheel, substantially as set forth.

In a striking-clock, the combination, with the hour-wheel thereof, of asnail and an hour star wheel rigidly secured together and mounted uponthe same arbor as the hourwheel, substantially as set forth.

4:. In a striking-clock, the combination, with the hour-wheel thereof,of a snail and an hour star wheel rigidly secured together and mountedupon the same center as the hourwheel and coupled therewith,substantially as set forth.

5. In a striking-clock, the combination, with the hour-wheel thereof, ofa snail and an hour star wheel rigidly secured together and mounted uponthe same center therewith, and a pin carried by the hour-wheel andextending between the teeth of the hour star-wheel, whereby the saidwheel and the snail are coupled with the hour-wheel, substantially asset forth.

6. In a striking-clock, the combination, with a time-train, of astrike-train, a single spring operating both trains, and rack and snailstriking mechanism, the snail and the hour star-wheel being mounted onthe same center as and coupled with the hour-wheel of the timetrain,substantially as set forth.

7. In a striking-clock, the combination, with the hourwheel thereof, ofan hour star-wheel and a snail rigidly secured together and coupled withthe hour-wheel and hourly actuated thereby, and a spring applied to thehour star-wheel and completing its hourly movement and that of thesnail, substantially as set forth.

8. In a striking-clock, the combination, with a snail and an hourstar-wheel rigidly secured together, of a spring entering between theteeth of the hour star-whee1 and provided with a lip for engaging withthe face of the same and holding the snail and wheel in place upon theircenter, substantially as set forth.

9. In a chiming-clock, the combination, with a time-train, of astrike-train, a striking-hammer actuated by the strike-train, achiminghammer also actuated by the strike-train, and an independentchiming-cam driven by the time-train and operating to cut in and cutoutthe chiming-hammer, substantially as set forth.

10. In a clock, the combination, with a strike-train, of a time-train, astriking-cam actuated by the time-train and releasing the strike-train,a striking-hammer, a chiminghammer, a hammer-wheel driven by thestriketrain and operating first one hammer an d then the other, and achiming-cam actuated by the time-train and cutting out the chiminghammerfrom the hammer-wheel and releasing it for operation thereby,substantially as set forth.

11. In a chiming-clock, the combination, with a strike-train, of atime-train which releases the striking-train, a striking-hammer,

and a chiming-hammer actuated by the striketrain, and an independentchiming-cam located upon the center arbor of the clock and rotatingtherewith and operating to release the chiming-hammer for operation bythe strike-train and to cut it out, so that it will not be operatedthereby, substantially as set forth.

12. In a chiming-clock, the combination, with a time-train, of repeatingmechanism, a striking-hammer and a chiming-hammer actuated by thestrike-train, and a chiming-cam driven by the time-train and constructedto periodically release the chiming-hammer, so that for a part of thetime it will follow the striking-hammer in repeating the hour,substantially as set forth.

13. In a clock, the combination, with a repeating mechanism, of achiming mechanism including a chiming-cam automatically operated by thetime-train and arranged to bring the chime into play in signaling thehalf-hour and thereafter in repeating until the conclusion of the hour,substantially as set forth.

14. In a clock, the combination, with a timetrain and a strike-train, ofa chiming-cam driven by the time-train, a hammer-wheel operated by thestrike-train, and a spring-actuated two-armed chiming-lever engaged bythe said cam and wheel and carrying a bellhammer, substantially as setforth.

15. In a clock, a friction-pinion mounted upon the centerarbor andhavingan extended sleeve, which is split and grips the arbor,substantially as set forth.

16. In a striking-clock, the combination, with a strike-train, of astriking mechanism having a rack, a pin carried by one of the wheels ofsuch train, a rotatable staff, and two detents carried by such staff andrespectively arranged to be engaged with the toothed edge of the rackand the pin, whereby the said rack and pin are each directly held,substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

AROHIBALD BANNATYNE.

WVitnesses:

IRVING H. PEASE, C. H. HALL.

